"Hello, I have owned the above
"Hello, I have owned the above Yammi 70hp OB for 16 years now and it has started first time, every time since new until about June this year when she started to act up. I had a major service performed on it in June and it ran sweetly after that when I used it for a week in July. I went to start it last week for a fishing trip and she would not start despite having brand new plugs and following the correct starting procedure, ie, squeeze fuel bulb to pump the juice til bulb is hard and then prime the motor with the lever and turn the ignition key for 5 secs before closing the primer lever and turning the ignition key again from which she usually fires up immediately. But not this time. She had fuel, new plugs but she wouldn't fire and I ran the battery flat trying to get her firing. A few days later I tried again following the exact same starting procedure and she burst into life on the first turn of the key whilst the primer was engaged. It's never done that before. It continued to start and ran normal for a hour or so. I tried to start her up again this morning but she would not fire at all. Checked the plugs and ignition coils, all unfouled and plenty of spark from each plug so the plugs/coils are fine. Next checked the fuel lines and filters and all fine there too. I am really stumped on why she wont fire up and on other days she bursts into life. Could it be a problem with the micro-processor? Any ideas, help really appreciated. Also, I could really do with an engine/service manual for this motor. The existing owner's manual doesn't help much and I would like to service it myself, as much as practicable.
Thanks,
Dorado"
"Hello, I have owned the above Yammi 70hp OB for 16 years now and it has started first time, every time since new until about June this year when she started to act up. I had a major service performed on it in June and it ran sweetly after that when I used it for a week in July. I went to start it last week for a fishing trip and she would not start despite having brand new plugs and following the correct starting procedure, ie, squeeze fuel bulb to pump the juice til bulb is hard and then prime the motor with the lever and turn the ignition key for 5 secs before closing the primer lever and turning the ignition key again from which she usually fires up immediately. But not this time. She had fuel, new plugs but she wouldn't fire and I ran the battery flat trying to get her firing. A few days later I tried again following the exact same starting procedure and she burst into life on the first turn of the key whilst the primer was engaged. It's never done that before. It continued to start and ran normal for a hour or so. I tried to start her up again this morning but she would not fire at all. Checked the plugs and ignition coils, all unfouled and plenty of spark from each plug so the plugs/coils are fine. Next checked the fuel lines and filters and all fine there too. I am really stumped on why she wont fire up and on other days she bursts into life. Could it be a problem with the micro-processor? Any ideas, help really appreciated. Also, I could really do with an engine/service manual for this motor. The existing owner's manual doesn't help much and I would like to service it myself, as much as practicable.
Thanks,
Dorado"